UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4pj6Ll24Bm8QXKJMii2QvBjMwdtBfzHgjCjdNLrQGN8=' 
WHERE 
  key_id = 'adfaad120246ba27724923888eddec01665684c42f24be76c13098567334bc3b' 
  AND (
    token = '4pj6Ll24Bm8QXKJMii2QvBjMwdtBfzHgjCjdNLrQGN8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )